CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 40 Hz
Transfer device: Back-to-back accelerometer type 8305
Degrees of equivalence Di and expanded uncertainty (k = 2) Ui, both expressed in pC/(m/s2)x10-4
Click on the graph to get a closer view and the names of the laboratories
_bb_40hz_sep10.gif)
Red diamonds : participants in CCAUV.V-K1 (2000 - 2001)
Pink diamonds : participants in CCAUV.V-K1.1 only (2006 - 2007)
Blue squares : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Orange circles : participants in EUROMET.AUV.V-K1.1 (2006)
Purple circles : participants in APMP.AUV.V-K1.2 (2009)
CCAUV.V-K1, CCAUV.V-K1, APMP.AUV.V-K1, EUROMET.AUV.V-K1, SIM.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device: Back-to-back accelerometer type 8305
Degrees of equivalence Di and expanded uncertainty (k = 2) Ui, both expressed in pC/(m/s2)x10-4
Click on the graph to get a closer view and the names of the laboratories
Red diamonds : participants in CCAUV.V-K1 (2000 - 2001)
Pink diamonds : participants in CCAUV.V-K1.1 only (2006 - 2007)
Green triangles : participants in APMP.AUV.V-K1 only (1996 - 1997)
Blue squares : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Black circles : participants in SIM.AUV.V-K1 only (1997 - 1999)
Orange circles : participants in EUROMET.AUV.V-K1.1 (2006)
Purple circles : participants in APMP.AUV.V-K1.2 (2009)
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device: Single-ended accelerometer type 8305
Degrees of equivalence Di and expanded uncertainty (k = 2) Ui, both expressed in pC/(m/s2)x10-4
Click on the graph to get a closer view and the names of the laboratories
_se_160hz_sep10.gif)
Red diamonds : participants in CCAUV.V-K1 (2000 - 2001)
Pink diamonds : participants in CCAUV.V-K1.1 only (2006 - 2007)
Blue squares : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Orange circles : participants in EUROMET.AUV.V-K1.1 (2006)
Purple circles : participants in APMP.AUV.V-K1.2 (2009)
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 5 kHz
Transfer device: Back-to-back accelerometer type 8305
Degrees of equivalence Di and expanded uncertainty (k = 2) Ui, both expressed in pC/(m/s2)x10-4
Click on the graph to get a closer view and the names of the laboratories
_bb_5khz_sep10.gif)
Red diamonds : participants in CCAUV.V-K1 (2000 - 2001)
Pink diamonds : participants in CCAUV.V-K1.1 only (2006 - 2007)
Blue squares : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Orange circles : participants in EUROMET.AUV.V-K1.1 (2006)
Purple circles : participants in APMP.AUV.V-K1.2 (2009)
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Back-to-back accelerometer type 8305
Degrees of equivalence relative to the key comparison reference value :
Di and expanded uncertainty (k = 2) Ui both expressed in pC/(m/s2)x10-4
Graphs are available for 6 frequency values:
40 Hz, 80 Hz, 160 Hz, 800 Hz, 2 kHz and 5 kHz
Frequency: 40 Hz
Frequency: 80 Hz
Frequency: 160 Hz
Click on the Graph to get a closer view and the names of the laboratories
Frequency: 800 Hz
Frequency: 2 kHz
Red diamonds : participants in CCAUV.V-K1 (2000 - 2001)
Pink diamonds : participants in CCAUV.V-K1.1 only (2006 - 2007)
Green triangles : participants in APMP.AUV.V-K1 only (1996 - 1997)
Blue squares : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Black circles : participants in SIM.AUV.V-K1 only (1997 - 1999)
Orange circles : participants in EUROMET.AUV.V-K1.1 (2006)
Purple circles : participants in APMP.AUV.V-K1.2 (2009)
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Single-ended accelerometer type 8305 WH 2335
Degrees of equivalence relative to the key comparison reference value :
Di and expanded uncertainty (k = 2) Ui both expressed in pC/(m/s2)x10-4
Graphs are available for 5 frequency values:
40 Hz, 80 Hz, 160 Hz, 800 Hz and 2 kHz
Frequency: 40 Hz
Frequency: 80 Hz
Frequency: 160 Hz
Frequency: 800 Hz
Frequency: 2000 Hz
Red diamonds : participants in CCAUV.V-K1 (2000 - 2001)
Pink diamonds : participants in CCAUV.V-K1.1 only (2006 - 2007)
Blue squares : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Orange circles : participants in EUROMET.AUV.V-K1.1 (2006)
Purple circles : participants in APMP.AUV.V-K1.2 (2009)
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 40 Hz
Transfer device: Back-to-back accelerometer type 8305
Full set of degrees of equivalence relative to the CCAUV.V-K1 key comparison reference value:
Red : participants in CCAUV.V-K1 (2000 - 2001)
Pink : participants in CCAUV.V-K1.1 only (2006 - 2007)
Blue : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Orange : participants in EUROMET.AUV.V-K1.1 (2006)
Purple : participants in APMP.AUV.V-K1.2 (2009)
The pair-wise degrees of equivalence given in the table below involve participants in CCAUV.V-K1 and CCAUV.V-K1.1 only.
| Lab i | Di | Ui |
| PTB | 0.6 | 0.8 |
| BNM-CESTA | 1.2 | 6.3 |
| CSIRO-NML | 1.2 | 5.0 |
| CMI | -0.9 | 5.7 |
| CSIR-NML | 9.2 | 11.4 |
| CENAM | -1.7 | 6.2 |
| NRC | -1.1 | 3.7 |
| KRISS | -1.1 | 4.5 |
| NMIJ | -2.9 | 5.2 |
| VNIIM | -5.4 | 5.0 |
| NIST | 1.2 | 3.7 |
| NMi-VSL | -0.9 | 3.1 |
| NIM* | 0.3 | 6.5 |
| NPLI* | 1.2 | 9.0 |
| INMETRO* | 0.0 | 3.3 |
* participants in CCAUV.V-K1.1 only
The degrees of equivalence and the pair-wise degrees of equivalence displayed in the table above are expressed in pC/(m/s2)x10-4.
Pair-wise degrees of equivalence involving participants in EUROMET.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2 are available in Summary Results (PDF file).
CCAUV.V-K1, CCAUV.V-K1.1, APMP.AUV.V-K1, EUROMET.AUV.V-K1, SIM.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device: Back-to-back accelerometer type 8305
Full set of degrees of equivalence relative to the CCAUV.V-K1 key comparison reference value:
Red : participants in CCAUV.V-K1 (2000 - 2001)
Pink : participants in CCAUV.V-K1.1 only (2006 - 2007)
Green : participants in APMP.AUV.V-K1 only (1996 - 1997)
Blue : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Black : participants in SIM.AUV.V-K1 only (1997 - 1999)
Orange : participants in EUROMET.AUV.V-K1.1 (2006)
Purple: participants in APMP.AUV.V-K1.2 (2009)
Matrix of equivalence for CCAUV.V-K1, CCAUV.V-K1.1, APMP.AUV.V-K1, and EUROMET.AUV.V-K1:
| Lab i | Di | Ui |
| PTB | 0.1 | 0.8 |
| BNM-CESTA | 0.7 | 6.3 |
| CSIRO-NML | -0.3 | 3.7 |
| CMI | -0.3 | 5.7 |
| CSIR-NML | -0.3 | 6.3 |
| CENAM | -0.3 | 6.3 |
| NRC | 1.2 | 3.6 |
| KRISS | -1.4 | 4.5 |
| NMIJ | -0.3 | 5.4 |
| VNIIM | 1.9 | 5.0 |
| NIST | -1.3 | 3.7 |
| NMi-VSL | -0.3 | 4.2 |
| NIM* | -0.2 | 2.8 |
| NPLI* | 2.4 | 9.0 |
| INMETRO* | -0.3 | 3.3 |
| CMS/ITRI** | -4.5 | 13.4 |
| NML-SIRIM** | 0.3 | 4.0 |
| GUM*** | -1.8 | 7.7 |
| DPLA*** | -1.0 | 2.9 |
| INRIM*** | -1.0 | 4.5 |
| SP*** | 3.9 | 5.2 |
| INETI*** | -2.0 | 5.2 |
| UME*** | -0.1 | 6.4 |
| BEV*** | -2.6 | 7.2 |
| CEM*** | 0.4 | 7.7 |
| METAS*** | -6.6 | 8.6 |
* participants in CCAUV.V-K1.1 only
** participants in APMP.AUV.V-K1 only
*** participants in EUROMET.AUV.V-K1 only
The degrees of equivalence and the pair-wise degrees of equivalence displayed in the table above are expressed in pC/(m/s2)x10-4.
Pair-wise degrees of equivalence involving participants in EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2 are available in the Summary Results for the BB accelerometer at 160 Hz (PDF file).
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device: Single-ended accelerometer type 8305
Full set of degrees of equivalence relative to the CCAUV.V-K1 key comparison reference value:
Red : participants in CCAUV.V-K1 (2000 - 2001)
Pink : participants in CCAUV.V-K1.1 only (2006 - 2007)
Blue : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Orange : participants in EUROMET.AUV.V-K1.1 (2006)
Purple : participants in APMP.AUV.V-K1.2 (2009)
The pair-wise degrees of equivalence given in the table below involve participants in CCAUV.V-K1, and CCAUV.V-K1.1 only.
| Lab i | Di | Ui |
| PTB | 0.3 | 0.9 |
| BNM-CESTA | 3.1 | 6.4 |
| CSIRO-NML | -0.9 | 3.7 |
| CMI | 0.1 | 5.9 |
| CSIR-NML | -2.9 | 6.4 |
| CENAM | -1.3 | 6.4 |
| NRC | 1.5 | 3.6 |
| KRISS | -1.9 | 4.5 |
| NMIJ | -2.1 | 5.5 |
| VNIIM | -1.7 | 5.1 |
| NIST | 1.1 | 3.8 |
| NMi-VSL | -0.5 | 4.3 |
| NIM* | 1.8 | 2.9 |
| NPLI* | 3.7 | 9.2 |
| INMETRO* | 1.1 | 3.5 |
* participants in CCAUV.V-K1.1 only
The degrees of equivalence and the pair-wise degrees of equivalence displayed in the table above are expressed in pC/(m/s2)x10-4.
Pair-wise degrees of equivalence involving participants in EUROMET.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2 are available in Summary Results (PDF file).
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 5kHz
Transfer device: Back-to-back accelerometer type 8305
Full set of degrees of equivalence relative to the CCAUV.V-K1 key comparison reference value:
Red : participants in CCAUV.V-K1 (2000 - 2001)
Pink : participants in CCAUV.V-K1.1 only (2006 - 2007)
Blue : participants in EUROMET.AUV.V-K1 only (2003 - 2004)
Orange : participants in EUROMET.AUV.V-K1.1 (2006)
Purple : participants in APMP.AUV.V-K1.2
The pair-wise degrees of equivalence given in the table below involve participants in CCAUV.V-K1, and CCAUV.V-K1.1 only.
| Lab i | Di | Ui |
| PTB | -0.3 | 1.7 |
| BNM-CESTA | - | - |
| CSIRO-NML | 1.4 | 4.8 |
| CMI | -0.2 | 7.5 |
| CSIR-NML | -1.6 | 8.8 |
| CENAM | -0.6 | 10.2 |
| NRC | -0.7 | 13.8 |
| KRISS | 0.9 | 5.2 |
| NMIJ | -0.6 | 17.0 |
| VNIIM | 13.8 | 9.1 |
| NIST | -1.6 | 15.4 |
| NMi-VSL | -0.8 | 48.8 |
| NIM* | -3.3 | 6.6 |
| NPLI* | -50.6 | 12.5 |
| INMETRO* | -2.7 | 13.0 |
* participants in CCAUV.V-K1.1 only
The degrees of equivalence and the pair-wise degrees of equivalence displayed in the table above are expressed in pC/(m/s2)x10-4.
Pair-wise degrees of equivalence involving participants in EUROMET.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2 are available in Summary Results (PDF file).
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Back-to-back accelerometer type 8305
Degrees of equivalence relative to the key comparison reference value :
Di and expanded uncertainty (k = 2) Ui both expressed in pC/(m/s2)x10-4
BNM-CESTA*: no data, measurement at shifted frequency
VNIIM**: results at frequencies from 1250 Hz to 5000 Hz excluded from the calculation of the key comparison reference value
Pair-wise degrees of equivalence are available in Summary Results (PDF file).
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Single-ended accelerometer type 8305 WH 2335
Degrees of equivalence relative to the key comparison reference value :
Di and expanded uncertainty (k = 2) Ui both expressed in pC/(m/s2)x10-4
There are no key comparison reference values and no degrees of equivalence relative to the key comparison reference value for frequencies from 2500 Hz to 5000 Hz.
Pair-wise degrees of equivalence are available in Summary Results (PDF file).
| Metrology area, Sub-field | Acoustics, Ultrasound, Vibration, Vibration |
| Description | Vibration acceleration |
| Time of measurements | 2006 |
| Status | Approved for equivalence |
| Final Reports of the comparisons | |
| Measurand | Magnitude of sensitivity in pC/(m/s2) |
| Parameters | Frequency: 40 Hz to 5 kHz |
| Transfer device | Standard accelerometers |
| Comparison type | Key Comparison |
| Consultative Committee | CCAUV (Consultative Committee for Acoustics, Ultrasound and Vibration) |
| Conducted by | EURAMET (European Association of National Metrology Institutes) |
| RMO Internal Identifier | EUROMET Project No 897 |
| Comments | Results published on 23 January 2010 Charge sensitivity measurements at 22 nominal frequencies ranging from 40 Hz to 5 kHz, using a Back-to-back (BB) accelerometer and a Single-ended (SE) accelerometer CCAUV.V-K1.1, APMP.AUV.V-K1, EUROMET.AUV.V-K1, SIM.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2 results are linked to those of CCAUV.V-K1 for common accelerometers and frequencies. |
| Pilot institute |
PTB
Physikalisch-Technische Bundesanstalt Germany |
| Contact person | Thomas BRUNS +49 (0) 531 592 1700 |
| Pilot laboratory | |
|---|---|
| PTB |
Physikalisch-Technische Bundesanstalt, Germany, EURAMET |
| BEV |
Bundesamt für Eich- und Vermessungswesen, Austria, EURAMET |
| INETI |
Instituto Nacional de Engenharia e Tecnologia Industrial (merged into IPQ), Portugal, EURAMET |
| LNE |
Laboratoire national de métrologie et d'essais, France, EURAMET |
| NCM |
National Centre of Metrology, now BIM (Bulgarian Institute of Metrology), Bulgaria, EURAMET |
This page proposes print-out on A4 paper (portrait) of the comparison details (best printed out using a black and white printer).
Please, select items to be printed out, then click on "OK" :
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 40 Hz
Transfer device : Back-to-back accelerometer type 8305
| The key comparison reference value, xR, is computed as the weighted mean of all participant results. Its combined standard uncertainty, uR, is obtained as the standard deviation of the weighted mean. xR = 0.12658 pC/(m/s2), uR = 0.00005 pC/(m/s2) and uR/xR = 0.04x10-2. |
|
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = xi - xR, and its expanded uncertainty (k = 2), Ui, |
|
The degree of equivalence between two laboratories i and j is given by a pair of terms: |
The PTB participated in both comparisons and is used as the linking laboratory. The computation of the linkage is in Section 8.2 on page 78 of the CCAUV.V-K1.1 Final Report.
The PTB, BNM-CESTA and CMI participated in both comparisons and were used as linking laboratories, as explained in Appendix A of the EUROMET.AUV.V-K1 Final Report.
The PTB participated in both comparisons and was used as linking laboratory, as explained in section 8 of the EUROMET.AUV.V-K1.1 Final Report.
The NIM participated in both comparisons and was used as linking laboratory, as explained in section 8 of the APMP.AUV.V-K1.2 Final Report.
The linkage processes make it possible to extend the graph of equivalence obtained for CCAUV.V-K1 (Back-to-back accelerometer, frequency 40 Hz) to include results from other key comparisons.
CCAUV.V-K1, CCAUV.V-K1.1, APMP.AUV.V-K1, EUROMET.AUV.V-K1, SIM.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Back-to-back accelerometer type 8305
| The key comparison reference value, xR, is computed as the weighted mean of all participant results. Its combined standard uncertainty, uR, is obtained as the standard deviation of the weighted mean. xR = 0.12663 pC/(m/s2), uR = 0.00005 pC/(m/s2) and uR/xR = 0.04x10-2. |
|
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = xi - xR, and its expanded uncertainty (k = 2), Ui, |
|
The degree of equivalence between two laboratories i and j is given by a pair of terms: |
The PTB participated in both comparisons and is used as the linking laboratory. The computation of the linkage is in Section 8.2 on page 78 of the CCAUV.V-K1.1 Final Report.
The linkage between APMP.AUV.V-K1 and CCAUV.V-K1 is computed only at the frequency of 160 Hz.
The CSIRO-NML, KRISS, NMIJ, and PTB participated in both comparisons and were used as linking laboratories, as explained on pages 3 and 4 of the Linkage Report.
The PTB, BNM-CESTA and CMI participated in both comparisons and were used as linking laboratories, as explained in Appendix A of the EUROMET.AUV.V-K1 Final Report.
The NRC and NIST participated in both comparisons and were used as linking laboratories. The linkage process is explained in Section III-4 on page 84 of the SIM.AUV.V-K1 Final Report.
The PTB participated in both comparisons and was used as linking laboratory, as explained in section 8 of the EUROMET.AUV.V-K1.1 Final Report.
The NIM participated in both comparisons and was used as linking laboratory, as explained in section 8 of the APMP.AUV.V-K1.2 Final Report.
The linkage processes make it possible to extend the graph of equivalence obtained for CCAUV.V-K1 (Back-to-back accelerometer, frequency 160 Hz) to include results from other key comparisons.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Single-ended accelerometer type 8305
| The key comparison reference value, xR, is computed as the weighted mean of all participant results. Its combined standard uncertainty, uR, is obtained as the standard deviation of the weighted mean. xR = 0.12899 pC/(m/s2), uR = 0.00005 pC/(m/s2) and uR/xR = 0.04x10-2. |
|
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = xi - xR, and its expanded uncertainty (k = 2), Ui, |
|
The degree of equivalence between two laboratories i and j is given by a pair of terms: |
The PTB participated in both comparisons and is used as the linking laboratory. The computation of the linkage is in Section 8.2 on page 78 of the CCAUV.V-K1.1 Final Report.
The PTB, BNM-CESTA and CMI participated in both comparisons and were used as linking laboratories, as explained in Appendix A of the EUROMET.AUV.V-K1 Final Report.
The PTB participated in both comparisons and was used as linking laboratory, as explained in section 8 of the EUROMET.AUV.V-K1.1 Final Report.
The NIM participated in both comparisons and was used as linking laboratory, as explained in section 8 of the APMP.AUV.V-K1.2 Final Report.
The linkage processes make it possible to extend the graph of equivalence obtained for CCAUV.V-K1 (Single-ended accelerometer, frequency 160 Hz) to include results from other key comparisons.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 5 kHz
Transfer device : Back-to-back accelerometer type 8305
| The key comparison reference value, xR, is computed as the weighted mean of all participant results except BNM-CESTA and VNIIM. Its combined standard uncertainty, uR, is obtained as the standard deviation of the weighted mean. xR = 0.12936 pC/(m/s2), uR = 0.00010 pC/(m/s2) and uR/xR = 0.08x10-2. |
|
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = xi - xR, and its expanded uncertainty (k = 2), Ui, |
|
The degree of equivalence between two laboratories i and j is given by a pair of terms: |
The PTB participated in both comparisons and is used as the linking laboratory. The computation of the linkage is in Section 8.2 on page 78 of the CCAUV.V-K1.1 Final Report.
The PTB and the CMI participated in both comparisons were used as linking laboratories, as explained in Appendix A of the EUROMET.AUV.V-K1 Final Report.
The PTB participated in both comparisons and was used as linking laboratory, as explained in section 8 of the EUROMET.AUV.V-K1.1 Final Report.
The NIM participated in both comparisons and was used as linking laboratory, as explained in section 8 of the APMP.AUV.V-K1.2 Final Report.
The linkage processes make it possible to extend the graph of equivalence obtained for CCAUV.V-K1 (Back-to-back accelerometer, frequency 5 kHz) to include results from other key comparisons.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Back-to-back accelerometer type 8305
| One key comparison reference value, xR, is computed for each frequency as a weighted mean of the participant results. xR is based on 12 laboratories at frequencies of 40 Hz to 1 kHz, 11 laboratories at 1.25 kHz to 3.15 kHz and 10 laboratories at 4 kHz and 5 kHz. The combined standard uncertainty, uR, of each key comparison reference value is obtained as the standard deviation of the weighted mean. |
|
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = xi - xR, and its expanded uncertainty (k = 2), Ui. |
|
The degree of equivalence between two laboratories i and j is given by a pair of terms: The full matrices of equivalence are computed in four cases: Back-to-back accelerometer at frequency 40 Hz, 160 Hz and 5 kHz, and Single-ended accelerometer at frequency 160 Hz. Use the surfing links provided on the left of the page to access the corresponding values and graphs. |
Graph of the key comparison reference values, xR and associated standard uncertainty uR, both expressed in pC/(m/s2), versus the frequency expressed in Hz
Blue diamonds: Back-to-back accelerometer type 8305 S/N 1483337
Green squares: Single-ended accelerometer type 8305 WH 2335 S/N 1610174
The PTB participated in both comparisons and is used as the linking laboratory. The computation of the linkage is in Section 8.2 on page 78 of the CCAUV.V-K1.1 Final Report.
The PTB, BNM-CESTA and CMI participated in both comparisons and were used as linking laboratories, as explained in Appendix A of the EUROMET.AUV.V-K1 Final Report.
The PTB participated in both comparisons and was used as linking laboratory, as explained in section 8 of the EUROMET.AUV.V-K1.1 Final Report.
The NIM participated in both comparisons and was used as linking laboratory, as explained in section 8 of the APMP.AUV.V-K1.2 Final Report.
The linkage processes make it possible to extend the graphs of equivalence obtained for CCAUV.V-K1 to include results from other key comparisons.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Single-ended accelerometer type 8305 WH 2335
| One key comparison reference value, xR, is computed for each frequency as a weighted mean of the participant results. No reference values are available from 2.5 kHz to 5 kHz. The combined standard uncertainty, uR, of each key comparison reference value is obtained as the standard deviation of the weighted mean. |
|
The degree of equivalence of each laboratory with respect to the reference value is given by a pair of terms: Di = xi - xR, and its expanded uncertainty (k = 2), Ui, |
|
The degree of equivalence between two laboratories i and j is given by a pair of terms: The full matrices of equivalence are computed in four cases: Back-to-back accelerometer at frequency 40 Hz, 160 Hz and 5 kHz, and Single-ended accelerometer at frequency 160 Hz. Use the surfing links provided on the left of the page to access the corresponding values and graphs. |
Graph of the key comparison reference values, xR and associated standard uncertainty uR, both expressed in pC/(m/s2), versus the frequency expressed in Hz
Blue diamonds: Back-to-back accelerometer type 8305 S/N 1483337
Green squares: Single-ended accelerometer type 8305 WH 2335 S/N 1610174
The PTB participated in both comparisons and is used as the linking laboratory. The computation of the linkage is in Section 8.2 on page 78 of the CCAUV.V-K1.1 Final Report.
The PTB, BNM-CESTA and CMI participated in both comparisons and were used as linking laboratories, as explained in Appendix A of the EUROMET.AUV.V-K1 Final Report.
The PTB participated in both comparisons and was used as linking laboratory, as explained in section 8 of the EUROMET.AUV.V-K1.1 Final Report.
The NIM participated in both comparisons and was used as linking laboratory, as explained in section 8 of the APMP.AUV.V-K1.2 Final Report.
The linkage processes make it possible to extend the graphs of equivalence obtained for CCAUV.V-K1 to include results from other key comparisons.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 40 Hz
Transfer device : Back-to-back accelerometer type 8305 S/N 1483337
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
| Lab i |
xi |
ui/xi |
| PTB |
0.12665 |
0.05 |
| BNM-CESTA |
0.12670 |
0.25 |
| CSIRO-NML |
0.12670 |
0.20 |
| CMI |
0.12649 |
0.23 |
| CSIR-NML |
0.12750 |
0.45 |
| CENAM |
0.12641 |
0.25 |
| NRC |
0.12647 |
0.15 |
| KRISS |
0.12647 |
0.18 |
| NMIJ |
0.12629 |
0.21 |
| VNIIM |
0.12604 |
0.20 |
| NIST |
0.12670 |
0.15 |
| NMi-VSL |
0.12650 |
0.13 |
MEASURAND : Charge sensitivity
FREQUENCY : 40 Hz
Transfer device : Back-to-back accelerometer type 8305 designated as "B2B"
xi-K1.1 : result of measurement carried out by laboratory i
ui-K1.1 : combined standard uncertainty of xi-K1.1
2ui-K1.1 : expanded uncertainty (k = 2) of xi-K1.1
| Lab i |
xi |
2ui/xi |
| PTB |
0.12598 |
0.10 |
| NIM |
0.12601 |
0.50 |
| NPLI |
0.12610 |
0.70 |
| INMETRO |
0.12598 |
0.24 |
MEASURAND : Charge sensitivity
FREQUENCY : 40 Hz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2355677 and S/N 606559
xi-EUR : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1
ui-EUR : combined standard uncertainty of xi-EUR
| Lab i |
xi-EUR |
ui-EUR/xi-EUR |
| BB S/N 2355677 | ||
| PTB |
0.12798 |
0.05 |
| BNM-CESTA |
0.1278 |
0.25 |
| GUM |
0.12793 |
0.30 |
| DPLA |
0.12776 |
0.173 |
| INRIM |
0.1278 |
0.17 |
| SP |
0.1283 |
0.2 |
| INETI |
0.1278 |
0.42 |
| CMI |
0.12769 |
0.25 |
| UME |
0.12803 |
0.25 |
| BB S/N 606559 | ||
| PTB |
0.12648 |
0.05 |
| BEV |
0.1261 |
0.3 |
| CEM |
0.1267 |
0.3 |
| METAS |
0.1258 |
0.366 |
BNM-CESTA was a participant in the CIPM MRA at the time of CCAUV.V-K1 and EUROMET.AUV.V-K1 comparisons.
MEASURAND : Charge sensitivity
FREQUENCY : 40 Hz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2161771
xi-EUR-K1.1 : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1.1
ui-EUR-K1.1 : combined standard uncertainty of xi-EUR-K1.1
Ui-EUR-K1.1 : expanded uncertainty of xi-EUR-K1.1, Ui-EUR-K1.1 = 2ui-EUR-K1.1
| Lab i |
xi-EUR-K1.1 |
Ui-EUR-K1.1 |
| PTB |
0.12505 |
0.10 |
| INETI |
0.12558 |
0.51 |
| BEV |
0.12500 |
0.60 |
| LNE |
0.12502 |
0.60 |
| NCM |
0.12515 |
0.20 |
The individual measurements of NIM, KIM-LIPI and NPLI are available in Table 6 of the APMP.AUV.V-K1.2 Final Report.
CCAUV.V-K1, CCAUV.V-K1.1, APMP.AUV.V-K1, EUROMET.AUV.V-K1, SIM.AUV.V-K1, EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Back-to-back accelerometer type 8305 S/N 1483337
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
| Lab i |
xi |
ui/xi |
| PTB |
0.12664 |
0.05 |
| BNM-CESTA |
0.12670 |
0.25 |
| CSIRO-NML |
0.12660 |
0.15 |
| CMI |
0.12660 |
0.23 |
| CSIR-NML |
0.12660 |
0.25 |
| CENAM |
0.12660 |
0.25 |
| NRC |
0.12675 |
0.15 |
| KRISS |
0.12649 |
0.18 |
| NMIJ |
0.12660 |
0.22 |
| VNIIM |
0.12682 |
0.20 |
| NIST |
0.12650 |
0.15 |
| NMi-VSL |
0.12660 |
0.17 |
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Back-to-back accelerometer type 8305 designated as "B2B"
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty of xi
| Lab i |
xi |
2ui/xi |
| PTB |
0.12606 |
0.10 |
| NIM |
0.12604 |
0.20 |
| NPLI |
0.12630 |
0.70 |
| INMETRO |
0.12603 |
0.24 |
MEASURAND : Amplified charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Back-to-back accelerometer type 8305 S/N 1610202 with charge amplifier type 2626, S/N 1242511
xi : result of measurement carried out by laboratory i participant in APMP.AUV.V-K1 only, normalized through the linking coefficient 0.12710 pC/mV to the CCAUV.V-K1, see page 3 and page 8 of the Linkage Report
ui : combined standard uncertainty of xi
| Lab i |
xi |
ui/xi |
| CMS/ITRI |
0.12618 |
0.53 |
| NML-SIRIM |
0.12666 |
0.16 |
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2355677 and S/N 606559
xi : result of measurement carried out by laboratory i participant in EUROMET.AUV.V-K1
ui : combined standard uncertainty of xi
| Lab i |
xi |
ui/xi |
| BB S/N 2355677 | ||
| PTB |
0.12801 |
0.05 |
| BNM-CESTA |
0.128 |
0.25 |
| GUM |
0.12782 |
0.30 |
| DPLA |
0.1279 |
0.102 |
| INRIM |
0.1279 |
0.17 |
| SP |
0.1284 |
0.2 |
| INETI |
0.1278 |
0.2 |
| CMI |
0.12785 |
0.25 |
| UME |
0.12799 |
0.25 |
| BB S/N 606559 | ||
| PTB |
0.12646 |
0.05 |
| BEV |
0.1262 |
0.28 |
| CEM |
0.1265 |
0.3 |
| METAS |
0.1258 |
0.338 |
BNM-CESTA was a participant in the CIPM MRA at the time of CCAUV.V-K1 and EUROMET.AUV.V-K1 comparisons.
MEASURAND : Amplified charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Back-to-back (BB) accelerometer type 8305 S/N 1687773 with charge amplifier S/N 1662291
xi : result of measurement carried out by laboratory i participant in SIM.AUV.V-K1
ui : combined standard uncertainty of xi
| Lab i |
xi |
ui/xi |
| NRC |
0.1251 |
0.15 |
| INMETRO |
0.1251 |
0.25 |
| CENAM |
0.1252 |
0.25 |
| INTI |
0.1247 |
0.55 |
| NIST |
0.1251 |
0.15 |
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2161771
xi : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1.1
ui : combined standard uncertainty of xi
| Lab i |
xi |
2ui/xi |
| PTB |
0.12521 |
0.10 |
| INETI |
0.12549 |
0.32 |
| BEV |
0.12472 |
0.56 |
| LNE |
0.12526 |
0.60 |
| NCM |
0.12519 |
0.20 |
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Back-to-back (BB) accelerometer type 8305 S/N 2440139
xi : result of measurement carried out by laboratory i participant in APMP.AUV.V-K1.2
ui : combined standard uncertainty of xi
| Lab i |
xi |
2ui/xi |
| NIM |
0.1280 |
0.5 |
| KIM-LIPI |
0.1278 |
0.68 |
| NPLI |
0.1284 |
0.7 |
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Single-ended accelerometer type 8305 WH 2335 S/N 1610174
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty xi
| Lab i |
xi |
ui/xi |
| PTB |
0.12902 |
0.05 |
| BNM-CESTA |
0.12930 |
0.25 |
| CSIRO-NML |
0.12890 |
0.15 |
| CMI |
0.12900 |
0.23 |
| CSIR-NML |
0.12870 |
0.25 |
| CENAM |
0.12886 |
0.25 |
| NRC |
0.12914 |
0.15 |
| KRISS |
0.12880 |
0.18 |
| NMIJ |
0.12878 |
0.22 |
| VNIIM |
0.12882 |
0.20 |
| NIST |
0.12910 |
0.15 |
| NMi-VSL |
0.12895 |
0.17 |
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Single-ended (SE) accelerometer type 8305
xi-K1.1 : result of measurement carried out by laboratory i
ui-K1.1 : combined standard uncertainty of xi-K1.1
2ui-K1.1 : expanded uncertainty (k = 2) of xi-K1.1
| Lab i |
xi |
2ui/xi |
| PTB |
0.13080 |
0.1048 |
| NIM |
0.13098 |
0.2027 |
| NPLI |
0.13117 |
0.6996 |
| INMETRO |
0.13091 |
0.2490 |
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer device : Single-ended (SE) accelerometer type 8305 WH 2335 S/N 2361558
xi-EUR : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1
ui-EUR : combined standard uncertainty xi-EUR
| Lab i |
xi-EUR |
ui-EUR/xi-EUR |
| PTB |
0.12592 |
0.05 |
| BNM-CESTA |
0.126 |
0.25 |
| GUM |
0.12578 |
0.30 |
| DPLA |
0.1259 |
0.102 |
| INRIM |
0.1257 |
0.17 |
| SP* |
0.1262 |
0.2 |
| INETI* |
0.1259 |
0.203 |
| CMI* |
0.1261 |
0.25 |
| UME* |
0.12631 |
0.25 |
| BEV* |
0.1265 |
0.21 |
| CEM* |
0.1265 |
0.3 |
| METAS* |
0.1266 |
0.34 |
* The results of these laboratories were corrected before further calculation to take into account the change in the sensitivity of the SE accelerometer, which occured during the comparison. The values given here are stated without the correction.
BNM-CESTA was a participant in the CIPM MRA at the time of CCAUV.V-K1 and EUROMET.AUV.V-K1 comparisons.
MEASURAND : Charge sensitivity
FREQUENCY : 160 Hz
Transfer devices : Single-ended (SE) accelerometers type 8305 WH 2335 S/N 1610168
xi-EUR-K1.1 : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1.1
ui-EUR-K1.1 : combined standard uncertainty of xi-EUR-K1.1
Ui-EUR-K1.1 : expanded uncertainty of xi-EUR-K1.1, Ui-EUR-K1.1 = 2ui-EUR-K1.1
| Lab i |
xi-EUR-K1.1 |
Ui-EUR-K1.1 |
| PTB |
0.13070 |
0.10 |
| INETI |
0.13090 |
0.26 |
| BEV |
0.13040 |
0.56 |
| LNE |
0.13068 |
0.60 |
| NCM |
0.13065 |
0.20 |
The individual measurements of NIM, KIM-LIPI and NPLI are available in Table 5 of the APMP.AUV.V-K1.2 Final Report.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : 5 kHz
Transfer device : Back-to-back accelerometer type 8305 S/N 1483337
xi : result of measurement carried out by laboratory i
ui : combined standard uncertainty xi
| Lab i |
xi |
ui/xi |
| PTB |
0.12934 |
0.10 |
| BNM-CESTA |
- |
- |
| CSIRO-NML |
0.12950 |
0.20 |
| CMI |
0.12935 |
0.30 |
| CSIR-NML |
0.12920 |
0.35 |
| CENAM |
0.12931 |
0.40 |
| NRC |
0.12930 |
0.54 |
| KRISS |
0.12946 |
0.22 |
| NMIJ |
0.12931 |
0.66 |
| VNIIM |
0.13074 |
0.34 |
| NIST |
0.12920 |
0.60 |
| NMi-VSL |
0.12929 |
1.89 |
MEASURAND : Charge sensitivity xi-K1.1 : result of measurement carried out by laboratory i xi 2ui/xi 0.12884 0.10 0.12851 0.50 0.12380 1.00 0.12857 1.00
BNM-CESTA: no data, measurement at shifted frequency
FREQUENCY : 5 kHz
Transfer device : Back-to-back accelerometer type 8305 designated as "B2B"
ui-K1.1 : combined standard uncertainty of xi-K1.1
2ui-K1.1 : expanded uncertainty (k = 2) of xi-K1.1
Lab i
/ [pC/(m/s2)]
/ 10-2
PTB
NIM
NPLI
INMETRO
MEASURAND : Charge sensitivity
FREQUENCY : 5 kHz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2355677 and S/N 606559
xi-EUR : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1
ui-EUR : combined standard uncertainty xi-EUR
| Lab i |
xi-EUR |
ui-EUR/xi-EUR |
| BB S/N 2355677 | ||
| PTB |
0.13077 |
0.1 |
| BNM-CESTA |
0.131 |
0.25 |
| GUM |
0.1306 |
0.30 |
| DPLA |
0.13054 |
0.149 |
| INRIM |
0.1304 |
0.28 |
| SP |
0.1312 |
0.65 |
| INETI |
- |
- |
| CMI |
0.13105 |
0.4 |
| UME |
0.13135 |
0.5 |
| BB S/N 606559 | ||
| PTB |
0.129 |
0.15 |
| BEV |
0.1291 |
0.33 |
| CEM |
0.129 |
0.33 |
| METAS |
0.1281 |
0.466 |
BNM-CESTA was a participant in the CIPM MRA at the time of CCAUV.V-K1 and EUROMET.AUV.V-K1 comparisons.
MEASURAND : Charge sensitivity
FREQUENCY : 5 kHz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2161771
xi-EUR-K1.1 : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1.1
ui-EUR-K1.1 : combined standard uncertainty of xi-EUR-K1.1
Ui-EUR-K1.1 : expanded uncertainty of xi-EUR-K1.1, Ui-EUR-K1.1 = 2ui-EUR-K1.1
| Lab i |
xi-EUR-K1.1 |
Ui-EUR-K1.1 |
| PTB |
0.12791 |
0.10 |
| INETI |
0.12820 |
0.68 |
| BEV |
0.12740 |
0.66 |
| LNE |
0.12741 |
0.60 |
| NCM |
0.12791 |
0.50 |
The individual measurements of NIM, KIM-LIPI and NPLI are available in Table 6 of the AUV.AUV.V-K1.2 Final Report.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Back-to-back accelerometer type 8305 S/N 1483337
xi : result of measurement carried out by laboratory i, expressed in pC/(m/s2)
ui : combined standard uncertainty xi, ui/xi expressed in 10-2
BNM-CESTA: no data at 4 kHz and 5 kHz (measurement at shifted frequencies)
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Back-to-back accelerometer type 8305 designated as "B2B"
The laboratory individual measurement resuts are reported in page 34 of the CCAUV.V-K1.1 Final Report.
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2355677 and S/N 606559
xi-EUR : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1 expressed in pC/(m/s2)
ui-EUR : combined standard uncertainty xi-EUR, ui-EUR/xi-EUR expressed in 10-2
BNM-CESTA was a participant in the CIPM MRA at the time of CCAUV.V-K1 and EUROMET.AUV.V-K1 comparisons.
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer devices : Back-to-back (BB) accelerometers type 8305 S/N 2161771
xi-EUR-K1.1 : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1.1
ui-EUR-K1.1 : combined standard uncertainty of xi-EUR-K1.1
Ui-EUR-K1.1 : expanded uncertainty of xi-EUR-K1.1, Ui-EUR-K1.1 = 2ui-EUR-K1.1
The individual measurements of NIM, KIM-LIPI and NPLI are available in Table 6 of the APMP.AUV.V-K1.2 Final Report.
CCAUV.V-K1, CCAUV.V-K1.1, EUROMET.AUV.V-K1,
EUROMET.AUV.V-K1.1 and APMP.AUV.V-K1.2
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Single-ended accelerometer type 8305 WH 2335 S/N 1610174
xi : result of measurement carried out by laboratory i, expressed in pC/(m/s2)
ui : combined standard uncertainty xi, ui/xi expressed in 10-2
BNM-CESTA: no data at 4 kHz and 5 kHz (measurement at shifted frequencies)
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Single-ended (SE) accelerometer type 8305
The laboratory individual measurement resuts are reported in page 22 of the CCAUV.V-K1.1 Final Report.
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer device : Single-ended (SE) accelerometer type 8305 WH 2335 S/N 2361558
xi-EUR : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1 expressed in pC/(m/s2)
ui-EUR : combined standard uncertainty xi-EUR, ui-EUR/xi-EUR expressed in 10-2
*The results of these laboratories were corrected before further calculation to take into account the change in the sensitivity of the SE accelerometer, which occured during the comparison. The values given here are stated without the correction.
BNM-CESTA was a participant in the CIPM MRA at the time of CCAUV.V-K1 and EUROMET.AUV.V-K1 comparisons.
MEASURAND : Charge sensitivity
FREQUENCY : from 40 Hz to 5 kHz
Transfer devices : Single-ended (SE) accelerometers type 8305 WH 2335 S/N 1610168
xi-EUR-K1.1 : result of measurement carried out by laboratory i in EUROMET.AUV.V-K1.1
ui-EUR-K1.1 : combined standard uncertainty of xi-EUR-K1.1
Ui-EUR-K1.1 : expanded uncertainty of xi-EUR-K1.1, Ui-EUR-K1.1 = 2ui-EUR-K1.1
The individual measurements of NIM, KIM-LIPI and NPLI are available in Table 5 of the APMP.AUV.V-K1.2 Final Report.
